All ICD10 Codes
Chapter 13

M00–M99: Diseases of the Musculoskeletal System and Connective Tissue

Diseases of the Musculoskeletal System and Connective Tissue diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
All CodesBillable Only
Internal Codes
PrevNext
  • M89.742—

    Major osseous defect, left hand

  • M89.749—

    Major osseous defect, unspecified hand

  • M89.75—

    Major osseous defect, pelvic region and thigh

  • M89.751—

    Major osseous defect, right pelvic region and thigh

  • M89.752—

    Major osseous defect, left pelvic region and thigh

  • M89.759—

    Major osseous defect, unspecified pelvic region and thigh

  • M89.76—

    Major osseous defect, lower leg

  • M89.761—

    Major osseous defect, right lower leg

  • M89.762—

    Major osseous defect, left lower leg

  • M89.769—

    Major osseous defect, unspecified lower leg

  • M89.77—

    Major osseous defect, ankle and foot

  • M89.771—

    Major osseous defect, right ankle and foot

  • M89.772—

    Major osseous defect, left ankle and foot

  • M89.779—

    Major osseous defect, unspecified ankle and foot

  • M89.78—

    Major osseous defect, other site

  • M89.79—

    Major osseous defect, multiple sites

  • M89.8—

    Other specified disorders of bone

  • M89.8X—

    Other specified disorders of bone

  • M89.8X0—

    Other specified disorders of bone, multiple sites

  • M89.8X1—

    Other specified disorders of bone, shoulder

  • M89.8X2—

    Other specified disorders of bone, upper arm

  • M89.8X3—

    Other specified disorders of bone, forearm

  • M89.8X4—

    Other specified disorders of bone, hand

  • M89.8X5—

    Other specified disorders of bone, thigh

  • M89.8X6—

    Other specified disorders of bone, lower leg

  • M89.8X7—

    Other specified disorders of bone, ankle and foot

  • M89.8X8—

    Other specified disorders of bone, other site

  • M89.8X9—

    Other specified disorders of bone, unspecified site

  • M89.9—

    Disorder of bone, unspecified

  • M90—

    Osteopathies in diseases classified elsewhere

  • M90.5—

    Osteonecrosis in diseases classified elsewhere

  • M90.50—

    Osteonecrosis in diseases classified elsewhere, unspecified site

  • M90.51—

    Osteonecrosis in diseases classified elsewhere, shoulder

  • M90.511—

    Osteonecrosis in diseases classified elsewhere, right shoulder

  • M90.512—

    Osteonecrosis in diseases classified elsewhere, left shoulder

  • M90.519—

    Osteonecrosis in diseases classified elsewhere, unspecified shoulder

  • M90.52—

    Osteonecrosis in diseases classified elsewhere, upper arm

  • M90.521—

    Osteonecrosis in diseases classified elsewhere, right upper arm

  • M90.522—

    Osteonecrosis in diseases classified elsewhere, left upper arm

  • M90.529—

    Osteonecrosis in diseases classified elsewhere, unspecified upper arm

  • M90.53—

    Osteonecrosis in diseases classified elsewhere, forearm

  • M90.531—

    Osteonecrosis in diseases classified elsewhere, right forearm

  • M90.532—

    Osteonecrosis in diseases classified elsewhere, left forearm

  • M90.539—

    Osteonecrosis in diseases classified elsewhere, unspecified forearm

  • M90.54—

    Osteonecrosis in diseases classified elsewhere, hand

  • M90.541—

    Osteonecrosis in diseases classified elsewhere, right hand

  • M90.542—

    Osteonecrosis in diseases classified elsewhere, left hand

  • M90.549—

    Osteonecrosis in diseases classified elsewhere, unspecified hand

  • M90.55—

    Osteonecrosis in diseases classified elsewhere, thigh

  • M90.551—

    Osteonecrosis in diseases classified elsewhere, right thigh

PreviousPage 162 of 174Next